Android :: ExpandableListViews And Checkboxes
Sep 2, 2010
I have being playing around with expandable list views recently. I am trying to get a list view that has a checkbox as one of the elements of the child view.
I found this tutorial, http://mylifewithandroid.blogspot.com/2010/02/expandable-lists-and-check-boxes.html, and it seemed perfect. However when I compiled it and started playing with it I realised its very buggy. Checking a box in one group can cause a random box from another group to check or uncheck.,
This is the only tutorial I can find on this, It seems like a thing that would be used in a lot of apps, so I was wondering, is there any other good tutorial or resource out there that deals with this? Or even better, would anyone care to show their own code having gotten this to work...
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May 7, 2010
Any insights/pointers regarding creating a layout like this. I have wasted quite a bit of time on this. I want to create a vertical linearlayout which has multiple ExpandableListViews separated by TextViews.
CODE:.........................
I tried the following approaches but each of them has one shortcoming or the other:
1. Add TextView and ExpandableListViews to a linearlayout. The problem with this approach is that LinearLayout by default is unscrollable.
Adding the LinearLayout to a ScrollableView creates even more issues because ListViews handle their own scrolling behavior.
2. I tried using a single ExpandableListView to model the above layout but the problem is that setGroupIndicator applies to the entire ExpandableListView, not a specific group.
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Mar 14, 2010
i'm having a problem (newbie one) with a CheckBox Listener AND a ListView. I need to request the '...long id) that passes through the Overriden method onListItemClick and put it into a OnCheckedChangeListener. How should i do that?
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Sep 7, 2010
I have a ListView, and within each list item I have some TextViews and a CheckBox. When I check a CheckBox and my onCheckedChangeListener fires, everything works as it should. However, random other checkboxes get checked once one is checked. Here is an example.
If I click on the first CheckBox:
8 is checked.
15 is checked.
21 is checked.
27 is checked.
33 is checked.
41 is checked.
Then if I scroll all the way up, none are checked until 6. The next being 13.
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Sep 9, 2010
I want to add some checkboxes to a LinearLayout at runtime. The orientation is vertical and I want the checkboxes to appear at the bottom. I create each checkbox like this: CheckBox box = new CheckBox(this);
Then I add the box to the current view like this: addContentView( box , params ); What should be the params to get the effect I want? So far, everything I've tried ends up overlaying the new checkboxes on top of each other and on top of the other items in the layout. I want everything stacked in a column with the new checkboxes at the bottom.
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Jan 18, 2010
I need your help. I'm really new to Android, developing in Eclipse with the latest 2.1 SDK. This is really simple. I make a ListView which is filled with Checkbox widgets. My code:..............
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Nov 28, 2009
I have a listview with some checkboxes. I want some of them to be prechecked when the activity starts. I have the positions of those checkboxes which needs to be pre selected.
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Oct 20, 2010
i'm using the default way to call the contact picker.
public void showContactPicker(View view)
{
Intent newIntent = new Intent(Intent.ACTION_PICK, Contacts.CONTENT_URI);
startActivityForResult(newIntent, 1);
}
but i need to select multiple contacts using checkboxes. how can i put checkboxes in the contacts list? is there a method that i can override that can add checkboxes and get the selected contact ids?
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May 6, 2010
Given a listview that shows checkboxes next to a list of people, I want to be able to get the names (in Strings for example) of the people who are checked. I have set my listview mode to allow for multiple checks.
getCheckedItemPositions()
Will get the positions but I can't figure out how to iterate over the listview to get the names. Also Eclipse tells me that getCheckItemIds is not a valid method for ListView.
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Nov 4, 2010
I have report which consists of 5 questions (there can be only one answer or multiple choice answer). Question are different for each report. So everytime I generate questions and answers as RadioButtons (one answer) or CheckBoxes (multiple choice answer)...But now I really don't know how to save those answers (I'd like to save to it as _question_id, _answer_id). How can I assign good _answer_id, to _question_id...
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Apr 30, 2010
I am facing a very mysterious Problem. I am using a ListView with CheckBoxes that can be clicked to select people. The row layout is the following:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content"> <CheckBox android:focusable="false" android:onClick="onSelectPerson" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center_vertical" android:layout_marginRight="5dip" android:layout_marginLeft="5dip"/> <TextView android:id="@+id/person_name" android:text="test" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center_vertical" android:textSize="18dip" android:layout_marginLeft="5dip"/> </LinearLayout>
As long as the amount of rows doesen't exceed the screen size (-> no scrolling) everything works just fine. But as soon as I have more rows then the screen size (-> some rows are hidden and have to be scrolled to). I have a very mysterious phenomenon: If I check the top row and scroll down some of the previously hidden rows are randomly checked too. If I scroll up again, again some of the before hidden rows are randomly vhecked (the CheckBox I clicked in first place may or may not still be checked). Also the registered onSelectPerson callback is only called for the CheckBoxes I really click. The other CheckBoxes just change their state to "checked" without calling the callback method. I have the same phenomenom on the Archos IT 5 and the Nexus One. This must have something to do with the ListView implementation but I can't quite figure out what the problem is.
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Apr 9, 2009
I'd like to have a dialog box which prompts the user to select from various checkboxes, then confirm "Ok" or "Cancel". I have this working, but my only issue is the dialog always retains the previous checkbox selection state from the last time the dialog was shown. I'd like to always force the checkboxes to be unchecked (false) every time. Is there a way to accomplish this?............
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May 23, 2010
What should I do to use custom checkboxes if I add my checkboxes dynamically in my code? (On the java code not on the XML files.) I'm following this tutorial, but using it I can't achieve my goal. For example, I have a tableLayout and I want to add a checkbox for each new row I have.
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Sep 13, 2010
I am building a list and the list contain for every contact a checkbox to chose which one to modify for example, the problem is that when the list became longer than the phone screen and the scrolling is active; when i select a check box , a second one is automatically selected in the bottom of the list.the problem is the automatic selection of the second checkbox; please let me know how can i fix it? below is the code i am using for getView method.
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Feb 11, 2010
now i dont know which event to implement to handle checkboxes in list when i click on checkbox it expands the list.... how to distinguish list click with checkbox placed in expandable list? or kindly refer me to tutorial same as expandablelist view with checkboxes.
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Feb 14, 2010
Ive got ListActivity and i am using custom CursorAdapter. in each item of the list ive got also checkbox. now i have in my list screen a perm button, when you press on it, it should find all the checkboxes which are 'checked' and do some operations on the item which it's checkbox is 'checked'. how can i retrive all the checked ones? ive done focusable:false, so i can use OnClickListener, but i dont know how farther then
this..
some code:.............
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Oct 29, 2010
In my apps preferences screen, i want to pop up a dialog that shows a list of checkbox items that are dynamically generated.
How does one do that and also, how does one get the checked values? I have made custom dialogs in the past, but for some reason my brain wont function today ..
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Sep 11, 2010
I have some 34 checkboxes on one Activity which i have to mark and unmark. and I want to save the status of the each checkbox.
I want this persistently. So should i have a sqlite table or preferences ?
If sqlite table is recommended, then what should be the ideal table structure design?
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Oct 15, 2012
This application is called "Get Healthy". I have no clue of how to activate the checkboxes. There are four diffrent checkboxes listed and with every diffrent combination there is a diffrent calculation. For example, Calculating a User's Daily Caloric Intake
The daily caloric intake is the amount of calories that someone is consuming in order to maintain their current weight. This calculation takes the following characteristics into consideration:
male (checkbox) or female (checkbox)
active(checkbox) or inactive (checkbox)
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Mar 2, 2010
I want to make a dynamic layout which contains mixed elements
[text] [checkbox] [button]
[text] [checkbox] [button]
[text] [checkbox] [button]
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Oct 19, 2010
today i meet the problem.i need technic can control the android machine from server.then i want send data from server to android with no request from android.
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Apr 14, 2010
I'm trying to open a dialog window, but every time I try to open it it throws this exception:
CODE:.................
I'm creating it by calling showDialog with the display's id. The onCreateDialog handler logs fine and I can step through it without an issue, but I've attached it since it seems like I'm missing something:
CODE:............
Is there something missing from this? Some questions have talked about having this problem when creating a dialog from onCreate, which happen because the activity isn't created yet, but this is coming from a call from a menu object, and the appContext variable seems like it is correctly populated in the debugger.
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Jun 3, 2010
I'm writing an application which connects to a back office site. The backoffice site contains a whole slew of JavaScript functions, at least 100 times the average site. Unfortunately it does not load them, and causes much of the functionality to not work properly. So I am running a test. I put a page out on my server which loads the FireBugLite javascript text. Its a lot of javascript and perfect to test and see if the Android WebView will load it. The WebView loads nothing, but the browser loads the Firebug Icon. What on earth would make the difference, why can it run in the browser and not in my WebView? Any suggestions.
More background information, in order to get the stinking backoffice application available on a Droid (or any other platform except windows) I needed to trick the bakcoffice application to believe what's accessing the website is Internet Explorer. I do this by modifying the WebView User Agent.Also for this application I've slimmed my landing page, so I could give you the source to offer me aid. package ksc.myKMB;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebSettings;
import android.webkit.WebViewClient;
import android.widget.Toast;
public class myKMB extends Activity {
I already have JavaScript on the web browser on, the problem is the web view is acting to different from the web browser.
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Aug 15, 2010
I want to implement my own Tokenizer base on the file
"MultiAutoCompleteTextView.java",
but I encounter an error "com.android.internal.R cannot be resolved" when I try to
import "MultiAutoCompleteTextView.java" to my project.
code:.................
I haven't research any solutions to resolve this problem.How to correct "com.android.internal.R.attr.autoCompleteTextViewStyle" my own attr?
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Jan 11, 2010
1- Does Android Browser (Éclair code base) support the "plug-in" or not?
2- Why "Google Gears" support is removed from the clair code base?
I searched the forum and came to know that earlier version of the Android does not support it at all? Here is the link for that, but this query asked in Dec'2008.
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Jan 5, 2010
At first,I have a database created by using Ruby on rails.I just already implement insert function(HTTPPost) in my Android Application and it's work.But I don't know how to retrieve specific record from my databases and insert it back to specific record in Android (Like edit function in RoR)This is my insert code :
private void insertComment() {DefaultHttpClient client = new DefaultHttpClient();HttpPost post = new HttpPost("http://10.10.3.87:3000/comments");
// Configure the form parameters
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
nvps.add(new BasicNameValuePair("comment[content]", t_comment.getText().toString();
nvps.add(new BasicNameValuePair("comment[id_account]", "1"));
nvps.add(new BasicNameValuePair("comment[id_place]", Integer.toString(position)I really try many ways out but it doesn't work and it takes very long time to fight with this piece of code. Actually, I really don't know how to specify RowID to HTTPPost.
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Sep 17, 2010
I am doing some android development, and now I need to send some android application generated data onto a remote server (a database)?How can I do that? can I use direct JDBC connection and sql?
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Oct 9, 2010
So i am making a android app, and i want it to be so if i call lets say 911 it sends my GPS coordinents to a certain IP, i know everything but how i make it so if i call 911 it sends the info and how i can make it send the info to the IP via 3g,
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Jul 10, 2010
I released updates of my apps yesterday and they are being hidden from android 1.5 and 1.6 phones.
This is due to a Market bug which hides apps with bluetooth permissions from android 1.5 and 1.6.
Come on Google fix the market. We spend countless hours making are apps work on ALL android versions and now you do this...
This issue has been raised since June, but has only affected me since i made an update to the market yesterday.
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Dec 23, 2009
What exactly are mock tests... I need to know the mock and performance tests available in android for testing android apps..what is the best tool for testing android apps and how..
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